IAA RAS IAA Minor Planet Database

285571 (2000 PQ9)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4324411214 ± 8.16e-10
Semi-major axis (a)1.9035657241 AU ± 5.85e-10
Inclination (i)13.48266244° ± 1.16e-06
Long. of Asc. Node (Ω)297.16245353° ± 7.40e-07
Arg. of Perihelion (ω)7.05697041° ± 3.81e-06
Mean Anomaly (M)231.96152491° ± 1.27e-06
Mean Motion (n)0.3752843568°/day ± 1.73e-10
Perihelion dist (q)1.08038563 AU ± 1.59e-09
Aphelion dist (Q)2.72674582 AU ± 1.76e-09
Orbital Period2.62634524 yr ± 1.21e-09
Physical Parameters
H (abs. magnitude)18.65
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.478″
Uncertainty0
Orbit TypeAmor
MOID0.064547 AU
Observations Used7147
Radar Obs Used1
Oppositions13
Arc Total2000-2021
First Observation Used2000-08-09
Last Observation Used2024-12-06
Observations (13272)
Date Type RA Dec Mag Band Observatory
2021-08-01 08:15:48 V 20 35 33.27 +22 22 18.7 14.4 V 247
2021-08-01 08:15:48 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:16:48 V 20 35 33.38 +22 22 24.2 14.8 V 247
2021-08-01 08:16:48 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:28:42 V 20 35 34.60 +22 23 36.1 14.6 V 247
2021-08-01 08:28:42 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:33:20 V 20 35 35.05 +22 24 04.0 14.7 V 247
2021-08-01 08:33:20 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:33:59 S 20 33 17.213 +21 39 23.62 – V C57
2021-08-01 08:33:59 s 1 -126193.38 4 +351009.37 7260.0 – C57
2021-08-01 08:34:20 V 20 35 35.18 +22 24 10.4 14.7 V 247
2021-08-01 08:34:20 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:35:19 V 20 35 35.27 +22 24 16.5 14.7 V 247
2021-08-01 08:35:19 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:36:19 V 20 35 35.38 +22 24 22.4 14.7 V 247
2021-08-01 08:36:19 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:37:18 V 20 35 35.47 +22 24 28.3 14.5 V 247
2021-08-01 08:37:18 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:38:18 V 20 35 35.57 +22 24 34.9 14.5 V 247
2021-08-01 08:38:18 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:39:17 V 20 35 35.71 +22 24 40.3 14.4 V 247
2021-08-01 08:39:17 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:40:17 V 20 35 35.79 +22 24 45.3 14.4 V 247
2021-08-01 08:40:17 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:41:16 V 20 35 35.88 +22 24 51.9 14.3 V 247
2021-08-01 08:41:16 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:42:16 V 20 35 36.00 +22 24 57.5 14.4 V 247
2021-08-01 08:42:16 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:43:16 V 20 35 36.12 +22 25 03.6 14.3 V 247
2021-08-01 08:43:16 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:43:59 S 20 33 19.001 +21 40 21.04 – V C57
2021-08-01 08:43:59 s 1 -126506.79 0 +350733.44 8840.0 – C57
2021-08-01 08:44:15 V 20 35 36.22 +22 25 09.4 14.5 V 247
2021-08-01 08:44:15 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:45:15 V 20 35 36.31 +22 25 14.8 14.4 V 247
2021-08-01 08:45:15 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:46:14 V 20 35 36.41 +22 25 22.2 14.6 V 247
2021-08-01 08:46:14 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:47:14 V 20 35 36.50 +22 25 26.9 14.8 V 247
2021-08-01 08:47:14 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:48:13 V 20 35 36.61 +22 25 34.2 14.7 V 247
2021-08-01 08:48:13 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:49:13 V 20 35 36.68 +22 25 39.4 14.4 V 247
2021-08-01 08:49:13 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:50:13 V 20 35 36.82 +22 25 46.0 14.3 V 247
2021-08-01 08:50:13 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:51:12 V 20 35 36.91 +22 25 51.1 14.1 V 247
2021-08-01 08:51:12 v 1 201.91287 +21.37114 – – 247
2021-08-01 08:52:12 V 20 35 37.02 +22 25 57.2 14.2 V 247
2021-08-01 08:52:12 v 1 201.91287 +21.37114 – – 247
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2021-07-23 05:30:00 67479907 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)